CloudFont 1.0.0 for Mac could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The program is included in Productivity Tools. This free Mac app is a product of CloudFont. We recommend checking the downloaded files with any free antivirus.
From the developer:
CloudFont is an application that helps you back up and synchronize your fonts in the Cloud. It offers an easy way to access all your fonts everywhere from any computer. The tool is also useful for working in a team, as CloudFont lets you synchronize the fonts between Mac systems in real time.
You may want to check out more Mac applications, such as CrowzNest, SendGenie or Everport - for moving 37signals' Backpack data to Evernote, which might be related to CloudFont.